data={'category_li':None,'categories':None,'user':{'id': 1, 'nick_name': '游乐娃子', 'avatar_url': 'FsXb8jHHx4sNdttpnUjnPosTjz9C', 'mobile': '18871723771', 'gender': 'MAN', 'signature': '学习falsk中', 'followers_count': 0, 'news_count': 0},'news_dict_li':[],'news_dict_li_r':[],'total_page':1,'current_page':1,'news':None,'avatar_url':None,'news_list':[],'collections':[],'users':None,'other_info':None,'comments':[],'comment':None,'is_collected':None,'is_followed':None}
Page_MAX=4
def index_class(index):
    if index==0:
        return 'first'
    elif index==1:
        return 'second'
    elif index==2:
        return  'third'
    else:
        return ''

